MH17 took off from Amsterdam's Schiprol Airport Thursday morning on the way to Kuala Lumpur. It crashed in Ukraine in the middle of its journey, carrying 280 passengers and 15 crew. The plane is thought to have been shot out of the sky, though neither the Ukrainian government nor pro-Russian separatist groups operating in the region have claimed responsibility. It seems likely the plane was shot down by mistake.

Pan was reportedly traveling to Malaysia on vacation with his partner, Neeltje Tol. The earliest comments on his photo are full of friends wishing him a happy trip.